An information theoretic approach to optical interferometry

Details An information theoretic approach to optical interferometry An information theoretic approach to optical interferometry

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.4838..398h&link_type=abstract

Interferometry for Optical Astronomy II. Edited by Wesley A. Traub. Proceedings of the SPIE, Volume 4838, pp. 398-403 (2003).

Astronomy and Astrophysics

Astronomy

Scientific paper

In optical synthesis imaging, the incomplete sampling of the complex visibility function, atmospherically induced phase perturbations, detector noise, and low light levels all limit one's ability to produce high-fidelity images. One improves upon these limitations by using iterative non-linear deconvolution and self-calibration techniques to produce image models that are consistent with the data. The question of image fidelity, or how well these models faithfully represent the true object, is an important question to ask. A possible answer could be formulated using the concepts of statistical information theory. We apply the concepts of Shannon Information to an optical interferometer and propose methods for monitoring the information content of images as a measure of image quality.

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